82792-88-9

Upstream product

• 54370-00-2 2-bromo-4,5-dimethoxybenzyl alcohol 
• 54370-01-3 1-bromo-2-(chloromethyl)-4,5-dimethoxy-benzene 

Downstream Products

• 82792-82-3 1-(3,4-Dimethoxy-phenyl)-5,6-dimethoxy-1,3-dihydro-benzo[c]thiophene 2,2-dioxide 
• 50656-79-6 (+/-)-phyltetralin 
• 82837-97-6 dimethyl trans(1,2),trans(2,3)-6,7-dimethoxy-1-(3,4-dimethoxyphenyl)-1,3,4-tetrahydronaphthalene-2,3-dicarboxylate 

Relevant academic research and scientific papers

A facile synthesis of 4-Aryl-1H-2-Benzothiopyran-3-Carboxylic Acid derivatives from o-Bromobenzyl mercaptans

The synthesis of 4-aryl-1H-2-benzothiopyran-3-carboxylic acid derivatives by a sodium hydride-mediated thiopyran ring formation of 2-[(2- aroylphenyl)methylsulfanyl]acetic acid derivatives is reported. The precursors were prepared by successive treatment of lithium o-lithiobenzyl mercaptides, which were generated by the reaction of o-bromobenzyl mercaptans with two equivalents of butyllithium, with aromatic aldehydes and 2-bromoacetonitrile or tert-butyl 2-bromoacetate, followed by oxidation of the resulting sulfanyl alcohols with pyridinium chlorochromate (PCC).

The Preparation of Lignans via Intermolecular Cycloadditions with Quinodimethanes

Certain lignans can be prepared using, as the key step, a thermal reaction between 1-(aryl)-1,3-dihydro-5,6-dialkoxy-benzothiophen 2,2-dioxides and dienophiles.